Valve today announced that Zeno Clash, a PC action-fantasy game powered by the Source engine and developed by ACE Team, has been released via Steam. Featuring up close and brutal combat in a first-person perspective, Zeno Clash is played in battle scenarios where the adversaries are always dangerously close and the use of exotic firearms and artifacts is a commodity. The new close combat mechanics are a deviation from traditional shooting in the FPS genre that will feel fresh for players.